body{
    padding: 0;
    margin: 0;
}
.main .center{
    width: 400px;
    height: 300px;
    margin: 0 auto;
    text-align: center;
}
.main .center .bookids{
    padding-top: 50px;
}
.main .center .user,.cbs,.price,.bookids{
    width: 400px;
    height: 50px;
    line-height: 50px;
    font-family: 微软雅黑;
    font-size: 20px;
}
.main .center .cbs{
    width: 420px;
}
.main .center .price{
    width: 440px;
}
.main .foot{
    width: 400px;
    height: 100px;
    text-align: center;
    margin: 0 auto;
}
.main .foot >input{
    width: 90px;
    height: 25px;
}
